98' Winnebago Adventure

Question

I have a 98 Winnebago Adventure WFG33WQ (model number). When I went out camping this weekend I hooked up the water into the RV at the panel. I set the valve to City Water fill which is for the camp water to enter into the RV. The other side of the valve is for filling my holding tanks. The problem is that durning the evening and morning the overflow on my holding tanks would start to let water out.

I've hooked the water up this way every time we go camping without a problem. The only thing I can think of is that the valve where I hooked up is letting water into the holding tank. Or that the cooler weather had something to do with this. ;)

old-biscuit · Answer

Check the valving and that the fill position is not cracked open.The fill position may be leaking thru......with water hooked up exercise valving to clear. Might just be crud built up on valve seat.

chuckftboy · Answer

I had the same thing happen to me. Turned out to be a bad check valve in the head of my water pump. Water was back feeding into the tank

matt_colie · Answer

Chris,Typically the tanks referred to as holding tanks store the gray and black water for disposal.  If those are fill from city water, you tap leaks that you need to repair. If you are referring to where the potable water is stored, that is regularly called a water tank or potable tank.  If that is filling from the city water connection then either the fill valve (not all RVs have) that is there to make this convenient is leaking or the system check valves are leaking.  Both of the above are why those of us that have been at this a while don't leave the city water pressurized when it is not being watched (you are not there or are asleep).  It doesn't take much to go wrong to have wet floors. Matt

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98' Winnebago Adventure

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